Home / 78,125.16-117,190.60-40,164.24

Finding the Fourth Proportional to 78,125.16, 117,190.60 and 40,164.24

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Solution

The fourth proportional to 78,125.16, 117,190.60 and 40,164.24 is: 60,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,125.16 : 117,190.60 = 40,164.24 : x
  2. Step 2: Convert to fraction form
    78,125.16/117,190.60 = 40,164.24/x
  3. Step 3: Cross multiply
    78,125.16x = 117,190.60 × 40,164.24
  4. Step 4: Simplify right side
    78,125.16x = 4,706,871,384.14
  5. Step 5: Solve for x
    x = 4,706,871,384.14/78,125.16
  6. Step 6: Final answer
    x = 60,247.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.